Nematoda Essay

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Evolution gives rise to diversity. The features of a common ancestor may have developed and been adapted for different environmental conditions, resulting in morphological differences between present day organisms. In order to make sense of the large diversity and form relationships between the organisms, organisms are classified into different groups. Members of each group have certain shared characteristics that distinguish them from members of other groups. This essay will compare two vermiform phyla, Platyhelminthes and Nematoda in terms of their physical traits, biological systems as well as ecological importance. Both Platyhelminthes and Nematodes are from the Kingdom Animalia. Members of Kingdom Animalia are multicellular, heterotrophic and motile at some stage of their life cycle. The two phyla are also similar in terms of symmetry, level of body organisation, tissue and embryonic development. Platyhelminthes and Nematodes have bilateral symmetry and organ…show more content…
Both Platyhelminthes and Nematodes play crucial ecological roles as decomposers and feed on microorganisms (Solomon et al, 2008). By breaking down large molecules, they provide food and energy to other organisms. Nematodes are the most significant group of consumers due to their abundance (Malakhov, 1994). Hence, they are important in the recycling of energy and matter. Although the two phyla have similar worm-like structures, Platyhelminthes and Nematodes can be distinguished by observing their internal and external morphology. These physical attributes contribute to the difference in biological systems between the two phyla as each system consists of various tissue and organs that function together. Moreover, studying the interactions of the animals with the environment can help to identify one phyla from the other. As such, they can be categorized into ambiguous but convenient groups in order for
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